Thursday, Nov 22, 2012 - 10:00 PMBilly travels from Flagstaff, Arizona to the end of Route 66 at Santa Monica Boulevard. Near Flagstaff, he visits Meteor Crater, and at the Grand Canyon Caverns, he finds the world's deepest, darkest and quietest motel room. He stops at Bottle Tree Ranch on the edge of Barstow, California, a place of scrap metal and glass bottle sculptures; and at Car Culture in Pomona, California. Part 4 of 4G